Improvement in invalid-chairs



4Sheets-Sheet1. N. P. BURGESS.

- INVALID-CHAIR. No.173,893. Patented Feb. 22,1876.

i. PETERS, PHQI'O-U'I'NOGRAPHERv WASHINGTON, D C.

. 4Sheets-Sheet2 N. P. BURGESS.

A INVALID-CHAIR.

Patented Feb. 22 1876.

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asses mrsraks Pnu'ro-umoa'mPaER, WASHINGTON. n.0,

4 Sheets-Sheet 3. N. P. BURGESS.

. INVALID-CHAIR.- No. 173,893. PatentedFeb. 22,1876.

N. PETERS. PHOTOLITKOGRQFNER. WASHINGTON D C.

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4Sheets-Sheet4. N. P. BURGESS. j

INVALID-CHAIR. Q

Patented Feb. 22, 1876.

N-PETEJE, FHOTO-LITHOGRAPNER, WASHINGTON. D C

' To all whom it may concern:

' UNITED Sr rEs PATENT orrror.

NOAH r. Boneless, or. PORTLAND, MAIFTE.

IMPROVEMENT m INVALIDLCHAIRS.

Specification formin-gpart of Letters Patent No. 173,893, dated February 22, 1876; application filed November 2, 1e75.

- Be it known that I, NOAH P. Portland, in the county of Cumberland and State of .Maine,have invented certain new and useful Improvements in Chairs; andI do hereby declare that the following is a full, clear, and exact description thereof, which will enablepothers skilled in the art to which it pertains tomake and use the same, reference being had to the accompanying drawings,

and to the letters of reference marked thereon,

which form a part of this specification.

Figure 1 is a side view. Fig. 2 is a sec tional view of the removable chair-seat and frame thereto. Fig. 3 is a view of the lever for operating the cams 0. Fig. dis adetail back view. Fig. 5 is a view of the hinge c.

Fig. 6 is a bottomview of the extension of the foot-rest, showing the supports g Fig. 7

l y is a detail view, showing the stud c and slot f.

Fig. 8 is a view of the modification of the foot-rest. Fig. 9 is a transverse vertical section view of the chair, showing, in full lines, the position of thebot-tom, false bottom, stool,

arms, &c., as in ordinary use, and. in dottedlines the position of the same parts when they are elevated by the cams, and the false bottom and. arms thrown over, to use the chair as stool-chair. i

Same letters show like parts.

The purpose of my invention is to provide an easy or invalid chair.

The invention may be best understood by a description of the various parts. p

a shows the back, which is both removable and capable of different inclinations. b is the frame of thebody or bottom of the chair. The back is removable from this for convenience in packing and moving the chair. The hinges are shown at c.- One of these has its lower half pivoted at 01, so as to turn to one side.' The thumb-screw 6 holds this part in position to keep the back a hinged to the frame I). y

In order to remove the back a, loosen the thumb-screw 6, turn to one side the pivoted half of one ofthe hinges 0, and. remove the back by slipping it to one side. Inclination is imparted-to the back a by means ,of the branching support f, workin gin sockets BURGESS, of

at g, and catching in the rack It, into the teeth of which the upper end, of the support f -is pressed by the spring-arm i. The back a carries, also, the head rest j, which is pivoted by a pivot,lc, to a holder, 1, sliding in a slot at the side of theback a. The head-restflis held in a horizontal position by the forward edge of the holder Z, which fits into a slot in the back end of the head rest, is there securedby,

the pivot k, and does not allowof the dropping of the rest below a horizontal position. The

rest consists of a curved arm, the outer end of which'extends toward the center of the.

back, and is intended to receive thehead of a. person sitting in the chair, and inclining against the rest. The head-rest can be applied to either side of the back.

The seat is shown at m, and is raised, when desired, by a shaft, n, carrying cams 0,

working against the bottom edge of the chairseat frame. Rollers may be provided to diminish the friction in the working of the cams, p show the arms of the seat. Either or both may be hinged so asto turn downward and to one side. q show slotted braces, fastened to the false bottom 1* of the seat, and which may be connected with the supports of the arms on one side, so that when the arm is turned down it will elevate the false bottom 1* when the chair is to be used for an invalid-stool.

This connection of the false bottom with the arms of the chair-seat is effected by thebraces q and thumb-screws 8. When the chair-seat is not elevated by thecams 0, the upholstering of the seat will be level with the top of the seat or body frame I). When the seat is raised it facilitates the removal therefrom of a helpless patient. When so raised the person can be removed from one side by first turning down the chair-arm. v

When the stool t is to be used the false bottom and seat-cushion can be lifted up by turning down the chair-arm p, without the necessity of lifting a person incapable of self-movement entirely out of and away from the chair. In such case the arrangement is of great. convenience. After the seat is ralsed the patient is aided to stand in front of the chair while the side, or arm, is turned down and the false bottom raised; and the person need .only rise a little from the stool in order to'ha-ve the false bottom returned to its 4 against the lower side of the seat of the stool.

place.

u is a foot-rest, composed of the three parts 11 w at. at is a hinged extension, when itis desired to have the foot-rest of considerable length. to is the main frame of the foot-rest, pivoted tothe frame I) at 3 To the main frame 20, and on it, is attached 'a frame, a, by means of two arms, 2. This frame is'kept pressed down onto to by aproper spring, il-' 7 lustrated at a. The two sides of the frame 71 are arranged to work against the two front supports of the arms of the seat of the chair. Thus, when the main frame .20 is raised, these two sides, pressing against the supports of the arms, will bring the rear part of the'foot rest to a level with the front edge of the 'seat,and when the footrest is dropped down the spring a will draw this part down between the sides of the main frame to. The spring may be made and applied in any convenient manner.

The whole foot-rest is supported, when raised,

by the toothed arms bcatching on lips c, and pivoted to the mainframe w. I

' The chair may be used for a bed, with its back dropped nearly to a level, the seat elevated, and the foot-rest raised and extended.

' (1 shows a lever for operating the shaft 12. When the chair is .to be moved or transported, it is so constructed that it may be taken into five parts. The back may be removed from the frame or body the head-rest removed from the back. The seat-frame may be lifted up out of the main frame b, it (the l seat-frame) working in grooves in the corners of the main frame I) for that purpose. The

l 'foot rest can be unhung from the frame b, the

studs' e on the frame, and the curved slots f ou the frame to, being provided for that object. 9! show supports for the extension 00 of the foot rest. h shows a folding drop-shelf, to

'hold a vesseLwhen the stool is being used.

The part i drops down vertically, turning on I pivots passing through the pieces j. Wh'en thus dropped down theshelf 7c is turned down to a'horizontal position to receive the vessel.

The shelf 70 is pivoted to the lower part of the sides of the part i, and is so arranged as not to drop below a horizontal position. When the main frame of the foot-rest.

not in use the shelf 70 is folded up into'th'e part i, and they are both then "turned up When both the arms are hinged by the lower ends 'of their supports to the seat, one arm is hinged to the permanent or stool seat, the other to the false bottom, as shown and described. 1

As another method of operating the footrest I describe the following: I) is the frame of the body or bottom of the chair, and w is V a is the interiorframe, butis used without a spring. Sybstituted for that is the cross-bar h, from which rise the two short standards 6. The

crossbar is fastened to the arms I). The interior frame a is hinged to to at it. As the main frame of the foot-rest is elevated the interior frame is pushed up by the standards t', so as to be on a level with the seat of the chair, as in the other form.

What I claim as my invention, and desire to secureby Letters Patent, is

l. The combination of the back ct with the body b by means of the hinges'c, one of them having the pivot a, so that the back can be removed from the body, as herein described.

2. The head-rest constructed as described, and applied to the back a, as set forth.

3. The combination of the seat m, shaft n, and cams 0, as and for the purposes herein described.

4. The arms 10, slotted braces q, and'thumbscrews 8, in combination with the false bottom 1 and the hinges of the arms, as herein de-- scribed.

'5. The foot-rest u, having the parts 21 w w, the spring a, the arms b, all to operate as hereindescribed.

6. The folding drop-shelf h, composed of scribed.

In testimony that I claim the foregoing as my own I affix my signature in presence of two witnesses.

, NOAH P. BURGESS.

Witnesses:

-WM. HENRY CLIFFORD,

FRANK H. JORDAN.

the parts 2' and k, operating as herein de- 

